Which of these occupy first 0 to 127 in Unicode character set used for character

Which of these occupy first 0 to 127 in Unicode character set used for characters in Java?

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1) What will be the output for the below code ?

public class Test
  { 
       public static void main(String[] args)
  {
       byte i = 128;
       System.out.println(i); 
       } 
 }

2) Literals in java must be appended by which of these?

3) Which of these occupy first 0 to 127 in Unicode character set used for characters in Java?

4) What is the output for the below code ?

public class Test
{
      public static void main(String[] args)
 { 
             int i = 010; 
             int j = 07; 
             System.out.println(i); 
             System.out.println(j); 
       } 
 }

5) In Java, the word true is ................